docs: def lxqstr(string, qchar, first):
      """
      Lex (scan) a quoted string.
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/lxqstr_c.html
  
      :param string: String to be scanned.
      :type string: str
      :param qchar: Quote delimiter character.
      :type qchar: char (string of one char)
      :param first: Character position at which to start scanning.
      :type first: int
      :return: last and nchar
      :rtype: tuple
      """
      string = stypes.stringToCharP(string)
      qchar = ctypes.c_char(qchar.encode(encoding='UTF-8'))
      first = ctypes.c_int(first)
      last = ctypes.c_int()
      nchar = ctypes.c_int()
      libspice.lxqstr_c(string, qchar, first, ctypes.byref(last),
                        ctypes.byref(nchar))
      return last.value, nchar.value